Ordering Recommendation
Refer to ARUP Immunohistochemistry Stain Offerings brochure at www.aruplab.com/ap/resources.
Mnemonic
Methodology
Qualitative Immunohistochemistry (IHC)
Performed
Mon-Fri
Reported
1-3 days
New York DOH Approval Status
Specimen Required
Tissue
Formalin fi x (10 percent neutral buffered formalin) and paraffi n embed specimen (cells must be prepared into a cellblock). Protect paraffi n block and/or slides from excessive heat. Transport tissue block or 2 unstained (3- to 5-micron thick sections), positively charged slides in a Tissue Transport Kit (ARUP supply #47808 highly recommended) available online through eSupply using ARUP Connect or contact ARUP Client Services at 800-522-2787 (Min: 2 slides). If sending precut slides, do not oven bake.
Room temperature. Also acceptable: Refrigerated. Ship in cooled container during summer months.
Tissue or cells not processed and placed in a paraffin block; serum, blood, or other body fluids; tissue not
mounted on positively charged slides.
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable
Reference Interval
Interpretive Data
Laboratory Developed Test (LDT)
Note
Hotline History
Hotline History
CPT Codes
88342
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
3006243 | MTB by IHC Reference Number | 94736-6 |
3006244 | MTB by Imunohistochemistry | 49461-7 |